Corrugated structure for railway cars



G. G. GILPIN CORRUGATED STRUCTURE FOR RAILWAY CARS Filed Oct. 2.3, 1925Ihvefz for:

Patented Nov. 15, 1927.

UNITED STATES PATENT OFFICE.

GARTH G'. GILPIN, 0F RIVERSIDE, ILLINOIS, ASSIGNOR TO UNION METALPRODUCTS COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF DELAWARE.

CORR'UGATED STRUCTURE FOR RAILWAY CARS.

Application led October 23, 1925. Serial No. 64,464.

My invention relates to the construction of railway cars having partsformed of metallic plates which are subjected to lateral, buckling andsometimes torsional stresses. Said parts are made of one or moremetallic plates or panels formed with vertical or horizontalcorrugations or other integral stiffening or bracing means to resistsuch stresses. While efforts are made to block the lading in thecar,.the shocks caused by the heavy locomotives, the emergency air brakeand the classification hump tear the lading away from its moorings andthrow it against the end of the car, the lateral weaving of the carthrows it against the side of the car, throws it against the bottom ofthe car. My invention is adaptable to several parts of a railway car,such as side doors, side walls, lioor sheets (sloping or otherwise),hopper doors, roof sheets, etc., but it is especially adaptable for useas the end wall of a rail-` way car and is also adaptable to boX,gondola or other types of cars.

One of the objects of the invention is to provide metallic parts of arailway car which have great strength to resist the torsional andweaving stresses which exist in a railway car when moving in service.These stresses are caused by the inertia of the roof and superstructurewhen the train is suddenly stopped; rough or uneven track; thesuperelevation of the track on curves; the lateral inertia in roundingcurves; eccentric thrust due to the lading being secured to one side ofthe ear; the cars being cornered; the use of push pole pockets, etc.Such stresses rack and distort the superstructure which decreases thelife of the car, and also causes the car to leak grain, sand and othersuch material. Furthermore, such stresses cause leaky roofs and leakyand inoperative side and end doors.

The tendency of an all metal end wall to bulge is resisted partially bythe corrugations, stiening members or whatever means have been providedto transmit such stresses to the side wall or frame members of the car.Such tendency is also resisted by the corner post of the car acting as avertical beam supported a horizontal load; in other words, the bulgingof the end would pull the opposite corner posts toward each other. 'Thisbulging also tends to pull the end (or side) plate downwardly and theend (or side) sill upwardly.

and the impact at its top and bottom and sustaining Another object ofthe invention is to reinforce the frame members against thrustperpendicular to their length by means forming a part of a corrugated orotherwise reinforced metallic end wall.

Since the corrugated metallic wall is braced against buckling it initself has considerable resistance to the lateral stresses but thewallmust be well secured to the frame members, (post, sill and plate) inorder to secure the co-operation between these frame members and betweenthe metallic wall and the frame members. Another object of the inventionis to obtain an improved method of securing a corrugated metallic wallto the frame members of the car.

In the drawings:

Fig. l shows my invention applied to a wooden box car.

Fig. 2 is a side elevation of Fig. l.

Fig. 3 is a section on line 3 3 of Fig. 1.

Fig. 4 is a section 4on line 4-4 of Fig.

Fig. 5 shows the invention.

Fig. 6 is a section on line 6 6 of Fig.

Fig. 7 is a section on line 7 7 of Fig.

F ig. 8 isa section on line 8-8 of Fig.

Fig. 9 is a section on line 99 of Fig. 5.

Fig. 10 is an enlarged view of the corner post of Fig. 4 and itsassociated parts.

l Fig. l1 is a fragmentary elevation of Fig.

A part of the metallic plate is pressed to form a panel 14 surrounded byan integral part of the plate positioned angularly to the plane of thepanel. If this surrounding part constitutes the edges of the plate thenit would technically be called a flange However, it may be provided witha* laterally extending part (or flange 28-27) so that the surroundingpart would then technically be called a web.7 This laterally extendingpart is not an element of the broader claims of this application,therefore, to avoid the use of two different words to designate the sameelement, in different claims, the word web is used to designate that'part of the plate surrounding the panel and positioned at an anglethereto whether it constitutes the edges of the plate or not.

It has been proposed to press the central portion of a metallic plate(or plates) so as to form a continuous web or flange surrounding a paneland to reinforce this panel by horizontal corrugations or other integralreinforcements which traverse the-panel and terminate adjacent theopposite portions of the web or ange. In such an arrangement the loa-dupon the horizontal corrugations is transmitted to the continuous web orflange only through the intermediate means of the fiat portion of theplate lying between the end of the horizontal corrugations andcontinuous web or flange. It has also been proposed to press the centralportion of a metallic plate (or plates) so as to form a web or flange(supposedly) surrounding a panel and to reinforce this panel byhorizontal corrugations or other integral reinforcements which are thesame depth as the web or flange where they merge into it. In such anarrangement the web or flange, as a beam, is destroyed. In myconstruction the transverse corrugations destroy only a part of thevalue of the web, leaving a remaining portion which extends continuouslyaround the panel to receive the stresses from the horizontalcorrugations and to function as a beam and a stiffener. Such stressesare transmitted directly to the remaining portion of the web.

That portion of the web between the corrugations serves as an excellentplace for an attaching bolt or rivet because a bolt or rivet sopositioned then also restrains the corrugations against deflection.Furthermore, a bolt or rivet so positioned prevents the web frombuckling as it has a tendency to do when acting as a beam.

In the drawings the usual parts of the car are shown such as the endvsill 1; end plate 2; side sill 3; side plate i; side girth 5; cornerpost 6; side lining 7; side sheathing 8; end lining l9 and end fascia10.

In my construction the central portion of the metallic plate 11 (orplates 11-12) is pressed to form a continuous web 13-16 surrounding apanel 14. This panel 14 is reinforced With corrugations which traversethe major part of the panel 91 and merge into it adjacent the oppositeportions 92--93 of the web and other corrugations (94) which spring fromthe panel (somewhere between the opposite portions of the web) and4extend toward and merge into the web. rIhese latter (or short)corrugations 94 are positioned in aligned pairs, one merging'- into oneportion (92) of the web and the other merging into the opposite portion(93) of the web. These long corrugations 90 and pairs of shortcorrugations (9e-911) may be positioned alternately with each other andthe long corrugations preferably overlap both of the opposite shortcorrugations. The short corrugations may be made longer thanillust-rated if desired. The stress of the shifting cargo is received bythe longe-r corrugations and transmitted to the flat plate at and thenceto the adjacent corrugations on either side of it, which in turn,transmit the stress to the web. The remaining portion 26 of thecontinuous web extendsV con` tinuously and uninterruptedly on three (orpreferably four) sides of the wall. This web receives the loadf from'-the corrugations; and forms a beam. or stiifener to prevent bulging intransmitting the load from the corrugations to-tlie fra-me oftheV car.These remaining portions of the vertical parts 16 of the continuous webare prevented from buckling or deiiecting by being formed integral withthe horizontal parts 13 of the continuous web (preferably by obliqueportions 17.) The web preferably lies against the adjacent frame member,such as corner post 6, end

sill' 1 or end' plate 2 and is secured: thereto by bolts 13 which arepreferably positioned between the corrugations. Other means 19 areprovided to secure the plate to the frame member which are preferablypositioned in alignment with the corrugations, These two means may beused jointlyv or severally. The.

plate is secured to the end sill 1 by bolts 20-21 and to the end plateby bolts 22-23.

Figs. 10 and' 11 show the preferred method of attaching the corrugatedplate to a frame member of a car. The web 92 is secured to the framemember 6' by a bolt 1'8 or other means which is positioned between.

the corrugations 94 and preferably aligned with the corrugations 90.Separate means 19 are used to fasten the flange to the frame memberwhich is preferably positioned be tween the bolts 18-18 and should bealigned with the corrugations 90.

-While I have shown and described the corrugations positionedl'iorizontally, it is understood that the corrugations may extend'vertically or otherwise,` and still come within the scope of theinvention, and, furthermore, while I have described'` and claimed' thewall made of a plate, it is understood that it may be made of one ormore united plates and still come within the scope of the invention.r

This is a continuation inl part of my copending application Serial No.30,778, fil'ed May 16,` 1925..

I claim:

1. A metallic plate pressed to form a continuous web surrounding apanel, said panel provided with pairs of aligned corrugations whichspring from the panel and extend toward and merge into the oppositeportions of said web.

2. A metallic. plate pressed to form a continuous web surrounding apanel, said panel provided with pairs of. aligned corrugations whichspring from the panel and extend' toward and merge intov the oppositeportions of said web, said panel also provided' with other corrugationswhich merge into the paIel adjacent the opposite portions of the we 3. Ametallic plate pressed to form a con*- tinuous web surrounding a panel',said panel a, provided with `which spring from the panel provided withpairs of aligned corrugations which spring from the panel and extendtoward and merge into the opposite portions of said web, said panel alsoprovided with other corrugations which merge into the panel adjacent theopposite portions of the web and which overlap said pairs ofcorrugations.

4. A metallic plate pressed to form a continuous web surrounding apanel, said panel pairs of aligned corrugations from the panel andextend towhich spring ward and merge into the opposite portionsV of saidweb, said panel also provided with other corrugations which merge intothe panel adjacent the opposite portions of the web and which arealternate with said pairs of corrugations.

5. A metallic plate pressed to form a continuous web surrounding apanel, said panel provided with pairs of aligned corrugations and extendtoward and merge into the opposite Portions of said web, said panel alsoprovided with other corrugations which merge into the panel ad jacentthe opposite portions of the web and which overlap and which arealternate with said pairs of corrugations.

6. A metallic plate pressed to form a continuous web surrounding apanel, said panel provided with pairs of aligned corrugations whichspring from the panel and extend toward and merge into the oppositeportions of said web and .being of less depth than the web where theymerge into it.

7. A metallic plate pressed to form a continuous web surrounding apanel, said panel provided with pairs of aligned corrugations whichspring from the panel and extend toward and merge into the oppositeportions of said web and being of less depth than the web where theymerge into it, said panel also provided with other corrugations whichmerge into the panel adjacent the opposite portions of the web.

8. In combination with a frame member of a railway car, a metallic platepressed to form a panel portion with a continuous web, said panelportion provided with pairs of aligned corrugations which spring fromthe panel and extend toward and merge into the opposite portions of saidweb, said panel also provided with other corrugations which merge intothe panel adjacent the opposite portions of the web, and means to securesaid web to said frame member positioned between said first mentionedcorrugations.

9. In combination with a frame memberof a railway car, a metallic platepressed to form a panel portion with a continuous Web, said panelportion provided with pairs of aligned corrugations which spring fromthe panel and extend toward and merge into the opposite portions of saidweb, said panel also provided with other corrugations which merge intothe panel adjacent the opposite portions of the web, and means to securesaid web to said frame member positioned between said first mentionedcorrugations and aligned With said last mentioned corrugations.

10. In combination with a frame member of a railway car, a metallicplate pressed to form a panel portion with a continuous web having aflange, said panel portion provided with pairs of' aligned corrugationswhich spring from the panel and extend toward and merge into theopposite portions of said web, said panel also provided with othercorrugations which merge into the panel adjacent tlie opposite portionsof the web, means to secure said web to said frame member positionedbetween said first mentioned corrugations, and separate means to securesaid flange to said frame member positioned between the first mentionedmeans.

1l. In combination with a' frame member of a railway car, a metallicplate pressed to form a panel portion with a continuous web having aflange, said panel portion provided with pairs of aligned corrugationswhich spring from the panel and extend toward and merge into theopposite portions of said web, said panel also provided with othercorrugations which merge into the panel adjacent theopposite portions ofthe web, means to secure said web to said frame member positionedbetween said first mentioned corrugations and aligned with said lastmentioned corrugations, and separate means to secure said flange to saidframe member positioned between the first mentioned means and alignedwith said first mentioned corrugations.

GARTH G. GILPIN.

